The robomower is emitting different sounds / beeps when operating or confirming the inputs via the cockpit after closing the lid.
5 second ??kHz Beep - indicates an error, if the Tilt LED lights up, then this is connected to an obstacle that tilted the robomower too much, or the robomower was lifted and the safety switch at the carrying handle was not pressed when lifted by the owner.
3 seconds ??kHz Beep - solid - confirmes the input and gets back to operation; mowing or home to charging station 3 seconds ??kHz Biip - pattern - indicates an error and the input is not accepted